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// Copyright 2019 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include 'src/builtins/builtins-regexp-gen.h'
namespace internal_coverage {
extern macro GetCoverageInfo(SharedFunctionInfo): Object;
macro GetCoverageInfo(implicit context: Context)(function: JSFunction):
CoverageInfo labels IfNoCoverageInfo {
const shared: SharedFunctionInfo = function.shared_function_info;
const maybeCoverageInfo = GetCoverageInfo(shared);
const coverageInfo = Cast<CoverageInfo>(maybeCoverageInfo)
otherwise goto IfNoCoverageInfo;
return coverageInfo;
}
macro IncrementBlockCount(
implicit context: Context)(coverageInfo: CoverageInfo, slot: Smi): void {
dcheck(Convert<int32>(slot) < coverageInfo.slot_count);
++coverageInfo.slots[slot].block_count;
}
builtin IncBlockCounter(
implicit context: Context)(function: JSFunction,
coverageArraySlotIndex: Smi): Undefined {
// It's quite possible that a function contains IncBlockCounter bytecodes,
// but no coverage info exists. This happens e.g. by selecting the
// best-effort coverage collection mode, which triggers deletion of all
// coverage infos in order to avoid memory leaks.
const coverageInfo: CoverageInfo =
GetCoverageInfo(function) otherwise return Undefined;
IncrementBlockCount(coverageInfo, coverageArraySlotIndex);
return Undefined;
}
} // namespace internal_coverage
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